CN101516798A

CN101516798A - Sheet glass laminate structure and multiple sheet glass laminate structure

Info

Publication number: CN101516798A
Application number: CNA2007800343122A
Authority: CN
Inventors: 青木重明
Original assignee: Nippon Electric Glass Co Ltd
Current assignee: Nippon Electric Glass Co Ltd
Priority date: 2006-09-14
Filing date: 2007-09-13
Publication date: 2009-08-26
Also published as: EP2062862A4; EP2062862A1; EP2062862B1; US8053079B2; US20090311497A1; WO2008032781A1

Abstract

The present invention provides a sheet glass laminate structure excellent in penetration resistance (bulletproof nature), crime prevention nature, heat shock resistance, translucency and airtightness. The sheet glass laminate structure (10) is produced by laminating at least three sheets of sheet glass (20) each having a sheet thickness of less than 1 mm with intermediate layers (30) interposed between them. When a central portion 20 mm in length including the middle point of a virtual line and opposite end portions respectively being 20 mm long from the opposite ends of the virtual line are set on the virtual line having a length equal to 50% of the maximum overall dimension of the translucent surface of the sheet glass (20) and extending in parallel with the direction of maximum overall dimension with the center of the translucent surface as its middle point, maximum variation DeltaHmax of the interval H between sheets of sheet glass opposing across the intermediate layer in connection with the central portion and the opposite end portions satisfies the following relation; 0[mu]m<DeltaHmax<20[mu]m.

Description

The tabular glass laminated structure of plate glass laminate structure and multilayer

Technical field

The present invention relates to as buildings or vehicle-mounted purposes or electronic unit purposes plate glass duplexer that utilizes as the penetrating window material with high strength and high tenacity etc. and and then the stacked tabular glass laminated structure of multilayer of this plate glass duplexer.

Background technology

Plate glass is owing to its light transmission is used with a large amount of purposes.As the luffer boards shape glass of various buildingss or the front screen of car, or electronic unit, for example, the display window of image display device such as liquid crystal indicator or plasma display, also have as the window material of accommodating the various packaged pieces of electronic unit, utilize the plate glass article that have been endowed various performances.

From such various uses, for essential performance, for example, the improvement of structural strength or inflexible reinforcement, heat insulating ability or thermal shocking, or as diactinic raising of plate glass etc., in order to realize high performance or to overcome weakness, carried out multiple invention up to now.

For example, in patent documentation 1, with the lightweight of glass or window glass for vehicle and heat insulating ability, the superior duplexer of security, the duplexer that plate glass utilizes the acrylic resin face to form via the polyvinyl butyral resin-bonded is disclosed as the window that can be suitable as buildings or door.In addition, in patent documentation 2, the luffer boards shape glass as with the crime prevention being purpose discloses use pyrex plate, and uses the laminated glass of the multipolymer conduct of hexafluoropropylene (HFP)/tetrafluoroethylene (TFE)-vinylidene fluoride between their intermediate coats each other.In addition, in patent documentation 3, the bonding laminated glass that is laminated as the window glass use of automobile is disclosed, it is for can be as sound equipment, vibration, front window sealing glass that sound-proofing properties is superior, polyvinyl butyral film or vinyl chloride-based resin film is kept, is controlled at 10 ℃～50 ℃ temperature range.And then, in patent documentation 4,, disclose and pressed from both sides the glass that is separated with the crosslinked ethylene-vinyl acetate copolymer resin sheet of own ratio-frequency heating as the shellproof compound glass of using of the crime prevention that except bullet-proof, also has lightweight simultaneously.

Patent documentation 1: Japanese kokai publication hei 6-99547 communique

Patent documentation 2: TOHKEMY 2006-96612 communique

Patent documentation 3: Japanese kokai publication hei 5-310450 communique

Patent documentation 4: TOHKEMY 2003-252658 communique

Because the raising of the consciousness of the crime prevention that the increase of crime in recent years etc. causes, the various trials of performance of the luffer boards shape glass of buildings etc. have been carried out being used for further improving, viewpoint for the crime prevention performance that improves luffer boards shape glass, from in the past, various plate glass have been developed with aforesaid performance.Viewpoint with regard to the resistance that improves these plate glass, the weather resistance of external physical stress such as raising impact power, for example adopt, cause the structure of disaster even glass breakage also can prevent separation of fragments, improve resistance the thermal shocking that causes by heating installations such as lighter or burners.

Yet in recent years, the plate glass duplexer that expectation has stronger function and has various performances be we can say in order to satisfy such expectation, only improves intensity or thermal characteristics not enough.

Summary of the invention

The object of the present invention is to provide and to satisfy aforesaid expectation, and shock-resistance, crime prevention, heat shock resistance also have superior plate glass duplexer of light transmission or resistance to air loss and the tabular glass laminated structure of multilayer that this plate glass duplexer further is laminated.

Promptly, plate glass laminate structure of the present invention is characterised in that, it is stacked and form across the middle layer each other less than the plate glass more than at least three of 1mm by thickness of slab, wherein, when 50% length of the maximum physical dimension of transparent surface and parallel with the direction of this maximum physical dimension and be on the imaginary line of mid point with the center of area of this transparent surface with described plate glass, setting comprises the central part of length 20mm of the mid point of this imaginary line, begin length when being respectively the both ends of 20mm with two ends from this imaginary line, for this central part and both ends, across described middle layer and the maximum variation delta Hmax of the interval H between the opposed described plate glass is 0 μ m＜Δ Hmax＜200 μ m.

At this, stacked at least three above plate glass of plate glass laminate structure of the present invention and constituting, therefore, interval between the plate glass is forming on the stacked direction more than two places, but the maximum variation delta Hmax of above-mentioned interval H is that the relation of 0 μ m＜Δ Hmax＜20 μ m is as long as satisfy at the formed above-mentioned interval H of outermost layer near a side of this plate glass laminate structure at least.In addition, the center of area is meant the position of a geometry center of gravity in the transparent surface.

The inventor is in the process of carrying out the research relevant with the stress of the plate glass structure that puts on stacked state, the intensity that is conceived to this structure is according to the difference of the stacked state of stacked plate glass and the big different fact, and based on the opinion that described understanding is found as the basis, the high-intensity plate glass laminate structure that has proposed to realize having the stability that did not have in the past.That is, the plate glass laminate structure at the maximum variation delta Hmax of above-mentioned interval H greater than 0 and during less than 200 μ m, can be to the stress that puts on this structure, especially to the superior endurance quality of surging force performance from the outside of transparent surface.

In plate glass laminate structure of the present invention, the interval (wall thickness in middle layer) that confirms between stacked plate glass changes.Also have, the inventor finds that the variation at the interval between this plate glass has shock absorption to the applying of impact stress from the outside, and can make the connecting airtight property raising in plate glass and middle layer, obtain utilizing this character to construct and have simultaneously flexibility and high rigidity and had the design of the works of shock-resistance.Promptly, under such state, variation in the gap of plate glass has periodically and under the multiple situation, the following effect of bonding strength performance in plate glass and middle layer, except chemical bond, also be meshing with each other and form the interface, can improve interface antistripping ultimate strength with respect to the shear strength that produces between plate glass and the middle layer in the distortion of the works that under by the external force effect, is produced, compare with completely parallel state and more can absorb rapid power, thereby can realize high resistance with respect to external force from the outside.And then, plate glass laminate structure of the present invention can be achieved as follows two stage elastic properties, that is, the distortion initial stage under external force, owing to the soft deformation effect in middle layer of the big part in the interval between the stacked plate glass show relatively little elasticity; But when distortion under the effect in external force becomes big, owing to the resistance to deformation in middle layer of the little part in the gap of stacked plate glass apply and show big relatively elasticity.Also have, the variation of the interval between such plate glass (wall thickness in middle layer) can correctly be managed by the maximum variation delta Hmax at the described interval H at central part and both ends that manages on the above-mentioned imaginary line.Promptly, the thickness that constitutes the plate glass of plate glass laminate structure of the present invention is below the 1mm, therefore, the structural elastic properties that has the easy deflection of direction (for example, the long side direction in plate glass) with long limit and minor face along the maximum physical dimension of its transparent surface.Thereby, in the plate glass laminate structure, the variation at the interval between the plate glass forms on the direction of maximum physical dimension significantly, therefore, can utilize the maximum variation delta Hmax at the described interval H at central part and both ends on the above-mentioned imaginary line correctly to manage.Also have, be limited in by maximum variation delta Hmax in the scope of 0 μ m＜Δ Hmax＜200 μ m, can access plate glass laminate structure with above-mentioned characteristic with above-mentioned interval H.Like this, plate glass laminate structure of the present invention is to show external force is had high resistance, and has the material that the what is called of the non-linear-elastic that elasticity changes along with the progress of distortion has brand-new characteristic.

The variation at the interval (wall thickness in middle layer) between the stacked plate glass form, for example, the arbitrary line zone in the transparent surface of plate glass laminate structure has the periodicity of 0.1mm～100mm.In plate glass laminate structure of the present invention, the variation at this interval can by across the middle layer and a side on the surface of opposed plate glass or two sides exist, be called crooked repetition concaveconvex shape and form, in addition, also can utilize at plate glass to be shaped the back, plate glass surface deformation, solidified method are formed by being rolled the thermal treatment that processing waits secondary transfer printing; Or also can utilize by the medicine processing following laser radiation or shelter etc. and partly remove the plate glass surface, on transparent surface, form the method that repeats concaveconvex structure and form.

And then, be set at the zone of the above-mentioned interval H of management parallel and be the zone of (all) the arbitrarily length 20mm on the above-mentioned imaginary line of mid point with the center of area of described transparent surface, can more correctly manage the variation at the interval (wall thickness in middle layer) between the plate glass thus with the direction of this maximum physical dimension.

Promptly, the preferred mode of plate glass laminate structure of the present invention is as described below, it is stacked across the middle layer each other less than the plate glass more than at least three of 1mm by thickness of slab and plate glass laminate structure that form, about 50% length in the maximum physical dimension of transparent surface with described plate glass, and parallel with the direction of this maximum physical dimension and be the line part of the 20mm of length arbitrarily on the imaginary line of mid point with the center of area of described transparent surface, across described middle layer and the maximum variation delta Hmax of the interval H between the opposed described plate glass is 0 μ m＜Δ Hmax＜200 μ m.And then preferred mode is as described below, plate glass laminate structure of the present invention is stacked across the middle layer each other less than the plate glass more than at least three of 1mm by thickness of slab and plate glass laminate structure that form, across following middle layer and the maximum variation delta Hmax of the interval H between the opposed described plate glass, be 0 μ m＜Δ Hmax＜200m in the size range of the 20mm arbitrarily parallel with the plate face, described middle layer accounts for more than 40% of area of transparent surface of the essentially rectangular shape of described plate glass, and be positioned at the middle section of the geometry center of gravity that comprises this transparent surface.

Yet, be 200 μ m when above at the maximum variation delta Hmax of above-mentioned interval H, the skew that sees through the light that laminate structure comes in transparent surface becomes big, degraded appearance.On the other hand, when the maximum variation delta Hmax of above-mentioned interval H is 0 μ m, be difficult to obtain effect of the present invention.

Pay attention at plate glass laminate structure of the present invention under the situation of optical property, preferably as far as possible little from departing from of the working direction of transmitted light.From such viewpoint, preferred maximum variation delta Hmax is as far as possible little, in order to realize higher aesthetic appearance, preferred Δ Hmax＜180 μ m, and then preferred Δ Hmax＜150 μ m, further preferred Δ Hmax＜120 μ m, further preferred Δ Hmax＜100 μ m, further preferred Δ Hmax＜80 μ m, most preferably Δ Hmax＜50 μ m.On the other hand, from the viewpoint that the strength characteristics of plate glass laminate structure of the present invention promptly is worth concerning the resistance of external force and non-linear-elastic fully, preferred maximum variation delta Hmax is big value.From such viewpoint, in order to realize higher strength characteristics, preferred 0.1 μ m＜Δ Hmax, and then preferred 0.2 μ m＜Δ Hmax, further preferred 0.5 μ m＜Δ Hmax, and then preferred 1 μ m＜Δ Hmax, further preferred 2 μ m＜Δ Hmax, further preferred 3 μ m＜Δ Hmax, further preferred 5 μ m＜Δ Hmax, most preferably 10 μ m＜Δ Hmax.Certainly, about higher limit or the lower value of these maximum variation delta Hmax, can wait arbitrary combination according to the use or the behaviour in service of plate glass laminate structure of the present invention.

As the plate glass that is used in plate glass laminate structure of the present invention, for example, preferably with as the plate glass of the plate glass manufacturing that is equipped on liquid crystal indicator etc. compare, in the fluctuating that has on the surface shape more than certain.Is the index of regulation surface shape as liquid crystal with " bending " of the surperficial specification of plate glass, for example, requires at least in the interval of the length of 20mm arbitrarily more than the position, and surface undulation is below the 0.1 μ m.Yet, because the change of certain key element of creating conditions in the plate glass manufacturing process, surpass the crooked specification ultimate surface grade that liquid crystal is required with plate glass sometimes, and the plate glass with surface shape that surpasses crooked specification of 0.4 μ m or 2 μ m is used as unacceptable product and is pulverized, and utilizes as frit again.Even have the plate glass of so surperficial grade, also can be by being used in plate glass laminate structure of the present invention, and make the interval between the plate glass repeat to change, can improve strength characteristics as above-mentioned various plate glass laminate structures.

Perhaps, it is that maximum value is implemented two splint material of high inflexible that surface finishing is handled the abutment plane of back formation with 200 μ m that utilization has above-mentioned " bending ", sandwich in the plate glass laminate structure of the present invention, with the face bend heating transfer of splint material in the plate glass duplexer of splint material butt, thus, making the maximum variation delta Hmax of above-mentioned interval H is that 0 μ m＜Δ Hmax＜200 μ m also can.

In addition, constitute plate glass laminate structure of the present invention plate glass size so long as gauge less than 1mm, just be not particularly limited.For example, about the thickness of slab size, can adopt various thickness of slab sizes such as 0.9mm, 0.85mm, 0.8mm, 0.77mm, 0.76mm, 0.75mm, 0.73mm, 0.71mm, 0.7mm, 0.68mm, 0.65mm, 0.63mm, 0.61mm, 0.6mm, 0.5mm, 0.3mm, 0.2mm, 0.1mm.On the other hand, if constituting the gauge of the plate glass of plate glass laminate structure is more than the 1mm, though the rigidity in the described plate glass monomer uprises, but flexibility reduces, the fragility grow, therefore, the variation of interval H that is difficult to freely to give necessary stacked plate glass is to show the superior strength characteristics of plate glass laminate structure of the present invention, and is therefore not preferred.Especially, in the gauge that is used in laminated glass in the past was plate glass more than the 2mm, the monomeric rigidity of plate glass was too high, therefore, can not be used in plate glass laminate structure of the present invention.In addition, about the shape of the end face of plate glass or the shape in bight, also be not particularly limited.For example, about the shape of the end face of plate glass, can suitably adopt the shape of machining shape with C face or R face etc.In addition, about the bight of plate glass, also can adopt shapes such as C face, R face.

Size about the transparent surface of plate glass, for example, under the situation of the size in length and breadth of plate glass with rectangular shape, can be as required, adopt size arbitrarily such as so-called 300 * 400mm, 360 * 465mm, 370 * 470mm, 400 * 500mm, 550 * 650mm, 600 * 720mm, 650 * 830mm, 680 * 880mm, 730 * 920mm, 1000 * 1200mm, 1100 * 1250mm, 1370 * 1670mm, 1500 * 1800mm, if regulate processing conditions, also can become object even then have the plate glass of the size in length and breadth of other ratios.In addition, as the plate glass shape, illustration rectangular shape, but, be not defined in rectangle especially about constituting the plate glass shape of plate glass laminate structure of the present invention, can have any shape.

As the material of the plate glass that constitutes plate glass laminate structure of the present invention,, just can be arbitrarily so long as have the hardness of expectation and the multicomponent of density is an oxide glass.For example,, especially be fit to non-alkali glass, pyrex, aluminum silicate glass etc. as using material of the present invention, wherein, non-alkali glass most preferably.

As being applicable to plate glass of the present invention, for example, select under the situation of non-alkali glass, as one of preferred material, as described below.It is formed under the situation about representing with the mass percent that is converted by oxide compound at glass, comprises 50%～85% SiO ₂, 2%～30% Al ₂O ₃, the following R of 0.1 quality % ₂O (R=Na+K+Li).In addition, in order to give blue-greenish colour or tawny painted to plate glass, be applicable to that the ferrous components that plate glass of the present invention contains is Fe ₂O ₃Containing ratio preferred below 0.2%, and then preferred below 0.1%, need under the situation of water white transparency, preferred below 0.05%.In the present invention, for the formation of utilizing stacked plate glass strengthens the color of described plate glass, it is raw-material painted to need management to constitute the plate glass of plate glass laminate structure.

In addition, the plate glass that constitutes plate glass structure of the present invention can adopt the plate glass that utilizes various moulding methodes to be shaped and to form.For example, can be as required, use stretching method, again hubbing, draw method, flow method etc. down.

In addition, be processed as the method for desired size, can adopt various working methods as the plate glass that will constitute plate glass structure of the present invention.For example, can separately use cut-out processing, water jet cut-out processing, the machining of utilizing diamond wheel, the cut-out that utilizes wire saw cutting device, the processing, the laser disconnecting device that utilize the disconnected device of banded sawing, the processing machine that fractures, burnishing device, topping machanism etc. as required.

In addition, plate glass laminate structure of the present invention is from economic point of view, and the number of the plate glass that it is stacked is more preferably below 30, more preferably below 15.

In addition, plate glass laminate structure of the present invention for machining plate-like glass end face only, makes its surfaceness that becomes regulation except above-mentioned, can select to adopt various processing methods.In addition, also can only handle end face, implement hot rolling processing etc., carry out air-cooled reinforcement or ion-exchange reinforcement and also can with the pharmaceutical chemicals of regulation.

About the middle layer, fill any organic resin and all can.For example, can use PVB (polyvinyl butyral) as required, urethane resin, PMMA (poly methyl methacrylate), PS (polystyrene), PMA (methacrylic resin), PC (polycarbonate), PVF (polyvinylformal), POM (polyacetal), PP (polypropylene), PE (polyethylene), AS (AS resin), EVA (ethylene vinyl acetate), PA (polymeric amide), PET (polyethylene terephthalate), PBT (polybutylene terephthalate), DAP (diallyl phthalate resin), AAS (AAS resin), ACS (ACS resin), TPX (polymethylpentene), PPO (polyphenylene oxide), PPS (polyphenylene sulfide), BS (butadiene styrene resin), PABM (poly-amino span comes acid amides), MBS (MBS resin), PAI (polyimide), PAR (polyarylester), PASF (polyene propyl group sulfone), BR (polyhutadiene), PESF (polyethersulfone), PEEK (polyether-ether-ketone), SI (silicone resin), PTFE (poly-tetrafluoroethylene), FEP (poly-fluoroethylenepropyl.ne), PFA (perfluoro alkoxy fluorinated plastic), materials such as heat-resisting fluorine resin.These middle layers can be single layer, and then also can be multilayered structure.In addition, about a plurality of middle layers, also can comprise different structures.

In addition, cooperate various additives, the medicaments etc. such as absorption agent, oxidation retarder, softening agent, defoamer, tackifier, coating modifying agent or anti-antistatic agent of the light of specific wavelengths such as tinting material, infrared rays or ultraviolet ray in right amount by the middle layer in plate glass laminate structure of the present invention, can give further additional performance.In addition, can suitably select to use metallic membranes such as oxide films such as stannic oxide or Indium sesquioxide, gold and silver, copper, palladium, platinum, titanium, indium or aluminium, organic resin film etc.

The material that is applicable to the middle layer of plate glass structure of the present invention can also use: prepare to be in the gelatinous polymer under the partial cross-linked in advance state, it is configured as the material in middle layer.In this case, partial cross-linked gelatinous polymer can be any form, can be different shapes such as powder shape, particulate state, spherical or sheet.Wherein, especially under the situation of plate shape, the processing that can be further the sheet surface be applied, covers the surface treatment agent, functional membrane etc. of expection.In addition, removing also of the fine bubble during shaping carried out easily, and be therefore preferred.

In the present invention, as the method for the maximum variation delta Hmax that confirms above-mentioned interval H in the situation of the scope of 0＜H＜200 μ m, following method is arranged: utilize industrial CT scan, the part in the zone that comprises the maximum variation delta Hmax that manages above-mentioned interval H is not destroyed and carried out tomography, utilize its laminogram, measure the above-mentioned interval H on the tomography line.In this CT scan tomography, can carry out the high-resolution photography, can estimate tens other variations of μ m level, therefore, preferred in the configuration aspects of confirming plate glass laminate structure of the present invention.In addition, scan with respect to plate glass, can measure the maximum variation delta Hmax of the above-mentioned interval H that will manage continuously by making the laser multilayer film determination sensor that utilizes the catoptrical measurement of laser to detect the glass interface position.Under the regional elongated situation of the maximum variation delta Hmax that manages above-mentioned interval H, as being used for the easy management process that efficient activity is measured, have for the plate glass laminate structure, linearity region along the maximum variation delta Hmax that manages above-mentioned interval H, utilizing water jet shut-off device to wait cuts off, with its thickness of slab section of the CCD microscopic examination more than 10 multiplying powers, measure the method for the variation of above-mentioned interval H; Or make light have the input angle about 10 degree～80 degree and see through tabular glass laminated structure from LASER Light Source or xenon lamp light source, and utilize the described light intensity that sees through to change, measure the light transmission strength detection method of the variation of above-mentioned interval H.In light transmission strength detection method, mensuration is positioned at the maximum variation delta H ' max through the variable quantity of all above-mentioned interval H of the plate glass laminate structure of light path, to constitute under the situation that the plate glass number is made as n, maximum change Δ Hmax can be calculated by Δ H ' max/n.And then, also have the distortion of the certain geometry decorative pattern by utilizing the carreau of observing and so on to estimate the method etc. of the variation of above-mentioned interval H across the plate glass laminate structure.When utilizing the said determination method to measure the above-mentioned interval H of plate glass laminate structure of the present invention, comprising under the situation of short-period variance components, remove the radio-frequency component that is equivalent to surfaceness from the above-mentioned interval H that measures, relate to crooked composition, estimate the maximum variation delta Hmax of above-mentioned interval H as the long period composition.In order to obtain this bending composition, preferably be used to filter radio-frequency component, for example cutoff is 0.08 millimeter filtering buckling curve W.

In addition, plate glass laminate structure of the present invention is except above-mentioned, if young's modulus (also being called longitudinal modulus of elasticity, Young's modulus of elasticity, young's modulus) is for more than the 30GPa, just has high rigidity, therefore, as window materials such as material of construction, also form the buildings that is fit to.

If the young's modulus of plate glass laminate structure is littler than 30GPa, then have large-area window material when using what use as building materials etc., the central part easy deformation of structure, excessive if deflection becomes, then plate glass and middle layer break away from easily, thereby undesirable.

If the young's modulus of plate glass laminate structure of the present invention is more than 30GPa, use under the situation of plate glass laminate structure at parts as building, also have fully high each performance of machinery, therefore, can improve the design freedom of buildings.

As the method for the young's modulus of measuring plate glass laminate structure of the present invention, can measure by the deflection that utilizes operating transformer to detect the laminate structure when using bend test device that load-carrying is put on duplexer central authorities.In addition, in addition, also can utilize measuring methods such as transverse vibration method or pulse echo overlay method to measure.

About forming the method for plate glass laminate structure of the present invention, can utilize the whole bag of tricks.For example, can form duplexer, make resin solidification then and form laminate structure by between the plate glass that remains stacked state in advance, injecting the resin become the middle layer; Perhaps also can form overlapping plate glass, under this state, directly implement heat treated or processed compressed to inserting under the state of resin film-making material between the plate glass.In addition, can be on a side's of plate glass transparent surface the resin material as the middle layer of coating specific thickness, further thereon overlapping plate glass perhaps carries out the operation of application of resin material thereon repeatedly.In addition, also can be the compound method of aforesaid the whole bag of tricks.Promptly, manufacture method as plate glass laminate structure of the present invention, can adopt the method with following operation, that is: it is stacked across the middle layer less than at least three above plate glass of 1mm to have a thickness of slab, and via between the bonding plate glass of this adhesive linkage and form the operation of duplexer; Cool off this duplexer, make the operation of middle layer performance effect.

Also have, in order to form plate glass laminate structure of the present invention, the easiest is the plate glass of using face bend with periodically lining regulation on stacked in advance plate glass or transparent states such as tunicle, by utilizing each surface formation mechanism that glass surface is processed or being covered, can use described plate glass to form plate glass laminate structure of the present invention thus so that it has best face bend or tunicle etc.At this, form mechanism as various surfaces, except above-mentioned, utilize methods such as the polishing processing of glass surface or machining, also can realize the case of bending expected, but the simplyst be, preferably critically regulate molding conditions such as forming speed when plate glass is shaped by molten state or cooling conditions, regulate the face bend state of plate glass thus.In addition, as coating method, use known the whole bag of tricks to get final product.

In addition, plate glass laminate structure of the present invention is except above-mentioned, if have with respect to the mean thickness of stacked plate glass second plate glass that is of a size of the gauge below 95% be disposed at the outermost layer of at least one side's described plate glass via junction film, and the gauge of this junction film is more than the mean value of gauge in middle layer, even then impact stress puts on the power that the plate glass laminate structure also can put on internal structure by second plate glass mitigation that forms the plate glass laminate structure, form the structure that correspondingly improves weather resistance.

About second plate glass, the material that its material can equate with the plate glass that constitutes laminate structure, but also can be different materials.In addition, this second plate glass can be sintered glass ceramics or chemically reinforced glass, physical strengthening glass as required.Especially, be disposed at the outermost layer of plate glass laminate structure by having high rigidity, high-intensity crystallization plate glass or tempering plate glass as second plate glass, can efficient improve rigidity or intensity well as the plate glass laminate structure.And this second plate glass can be for diamond plate shape glass, implemented specific chromatic decoration plate glass.

In addition, about this second plate glass, can be had the tunicle of particular optical performance, the tunicle with electrical property, protection reinforced film or the lining of tackiness film, the purposes according to using also can adopt optimum structure.

And then, about the surface property of second plate glass, can utilize sandblast or laser processing, polished finish, fluoric acid etch processes to wait the surfaceness of suitably regulating its transparent surface.In addition,, can be the shape different, also can be identical shape,, also can adopt known various working method about its working method with plate glass about end face around second plate glass.

And then, about the junction film between second plate glass and plate glass,, and can realize that behind joint any material of desired intensity all can use as long as can be bonding, engage second plate glass and plate glass.Can use the organic system junction film, inorganic be that a junction film or an organic inorganic composite materials are junction film.And then, as these organic system junction films, the single composition junction film that can serve as reasons and can constitute, the multilayer junction film that can constitute as a plurality of materials that intermediate coat utilizes of also can serving as reasons in order to give functional as the material that intermediate coat utilizes.For example, the polycarbonate plate that sandwiches thickness 1mm～3mm with the eva film of 0.2mm thickness forms the junction film of three-decker, can improve anti-connectivity thus.And then, also can be for having mixed the structure of various interpolation materials.

In addition, plate glass laminate structure of the present invention is except above-mentioned, if the middle layer is made of the sheet material that has used thermoplastic resin, then when constituting stepped construction, can form laminate structure with effective operation, and the shaping grade of manageable laminate structure, thereby preferred.

For example, PVB (polyvinyl butyral) or EVA thermoplastic resin materials such as (ethene polyvinylacetates) material that forms that is shaped is in advance sandwiched and is bonded between plate glass and the plate glass, keep this state, and under this state, heat etc., engage with plate glass, can form the middle layer.

Also can implement concavo-convexly etc. to the suitable position on the above-mentioned sheet material in advance, also can prepare the sheet material that is added with suitable filler etc. in advance.About concavo-convex, can be concavo-convex for systematicness, also can be for irregular concavo-convex.In addition, filler also can be regulated according to the mode of sneaking into sheet material in advance when sheet is shaped, and also can imbed the suitable position of sheet material after making sheet material.

In addition, as the material that constitutes middle layer of the present invention, for example under the situation of using polyvinyl butyral, preferably its matter average molecular weight is 10,000～350,000.By adopting such matter average molecular weight, can be implemented in intensity aspect perfect performance.And then, as middle layer of the present invention, utilize PTFE (tetrafluoroethylene), FEP (poly-fluoroethylenepropyl.ne), PFA fluoro-resin such as (perfluoro alkoxy fluorinated plastics) to constitute, improve middle layer with the faced joint of glass by use, can improve the thermotolerance of plate glass laminate structure greatly.

In addition, plate glass laminate structure of the present invention is except above-mentioned, as long as contain by more than one particles that constitute, fibrous material, reticulation, woven cloth in the group of glass, sintered glass ceramics, metal and carbon in the middle layer or weave cotton cloth, just can adopt optimum structure according to purposes, form plate glass duplexer thus, can tackle various needs with sufficient rigidity and intensity.

Material for above-mentioned glass, sintered glass ceramics, metal and carbon is not particularly limited.For example, about glass, can use various multicomponents is glass or silica glass etc., about sintered glass ceramics, also can utilize various sintered glass ceramics materials.In addition, also identical about metal or carbon.And then, for particle, fibrous material, reticulation, woven cloth or size for weaving cotton cloth or shape etc. be not particularly limited.

For example, contain in the middle layer under the situation of glass fibre, improve the rigidity in middle layer, thereby can improve rigidity greatly as plate glass laminate structure of the present invention.About physical dimension such as the diameter of the glass fibre that is contained in the middle layer, length,, just be not particularly limited as long as the plate glass structure forms desired size.In addition, about the composition of glass fibre, do not limit especially yet.For example, can suitably select materials such as silica glass, E glass, D glass, H glass, AR glass or S glass.In addition, under the situation that contains the specific glass fiber consistent with the specific refractory power of the resin material in middle layer, the scattering of light when not having the light transmission in the plate glass laminate structure of the present invention can be kept transparent through performance.

In addition, the surface of the glass fibre in the middle layer can apply the coating agent of the performance that can give expectation in right amount.As can be at the coating agent of glass fibre coating, for example, astringent matter, independent one or more of tying up agent, coupler, lubricant, antistatic agent, emulsifying agent, emulsion stabilizer, pH regulator agent, defoamer, tinting material, oxidation retarder, mould inhibitor or stablizer etc. at random can be coated on the surface of glass fibre in right amount.In addition, such surface treatment agent or Liniment can be also can be for starch for plastics.

In addition, plate glass laminate structure of the present invention is except above-mentioned, if the length dimension of glass fibre is below the 5mm, then do not having just to form uniform dispersion state under the situation of twining easily between the glass fibre, therefore, be difficult to take place the problem such as inhomogeneous of the inequality of intensity in the middle layer that produces by unbalanced dispersion state or its gauge.

In addition, plate glass laminate structure of the present invention by laser or etching, sandblast etc. are used in suitable position, can be imprinted at glass surface with material coding or model etc. as required.

In addition, plate glass laminate structure of the present invention is except above-mentioned, if transmitance is more than 30%, and can also be as the daylighting window of buildings, therefore preferably.

At this, transmitance is to be meant more than 30%: for the straight line transmitance of the surface reflection that comprises the plate glass laminate structure, the average transmittances of the visible rays of the scope of wavelength 400mm～800nm is more than 30%.Measurement about the transmitance of the surface reflection that comprises this plate glass laminate structure, as long as use the spectrophotometric transmittance determinator of known two-beam scan type etc., have in its measuring light side configuration to measure under the state of plate glass laminate structure of specified dimension area and get final product.At this moment, implement on the surface of plate glass laminate structure under the situation of any film material, should be noted that whether it also measures it.

In addition, plate glass laminate structure of the present invention is as window material such as buildings and adopting by plate glass laminate structure visual observation to be positioned under the situation of using method of object and so in a distant place of opposition side, preferably has the high transmitance of trying one's best, its transmitance is to be good more than 40%, and then preferred more than 50%.

And then the surface of plate glass laminate structure of the present invention can utilize the whole bag of tricks to implement tunicle.As the kind of tunicle, can suitably adopt the specific refractory power of giving optical property to regulate film, do not see through film, antireflection film or improve the protective membrane of weathering resistance and conducting film, charged membrane etc.In addition, as the constructional method of epithelium, can suitably use chemical vapor deposition method, physical vapor deposition, sputtering method, pickling process, attaching method or bristle coating process etc.

In addition, with regard to plate glass laminate structure of the present invention, also can form the works of integrally bending by when forming duplexer, in the moulding stock that is shaped in advance, being pressed into plate glass.

In addition, in order further to improve the performance of crime prevention, in the plate glass laminate structure of the present invention, the middle layer between plate glass also can set transparent conductive body or metal wiring as the detection distribution.By forming such structure, the plate glass laminate structure utilizes the electricity aspect easily to detect it is broken or with its destruction that runs through when using as the window material of buildings or door material.In addition, can be that terminals such as vibration transducer or temperature sensor are held under the arm and are contained between the plate glass with the specific transmitter beyond above-mentioned.

In addition, the tabular glass laminated structure of multilayer of the present invention is characterised in that, forms multilayered structure across the gap filling film with the gauge more than the 0.3mm each other at above-mentioned plate glass laminate structure.

If it is not the gauge of gap filling film then can not engage having between the large-area plate glass laminate structure sometimes less than 0.3mm fully powerfully, therefore preferred.

In addition, plate glass laminate structure of the present invention can constitute with the plate glass Reuse of materials by liquid crystal indicator is carried.

Specifically, for example, carry the alkali-free plate glass material of usefulness for the first time as after the liquid crystal indicator assembling from the liquid crystal indicator that will be encoded to OA-10 or OA-21 according to the glass material of Japan electric nitre Co., Ltd., because faults of liquid crystal indicator etc. and reclaim alkali-free plate glass material in the unworkable device adopt it as plate glass duplexer of the present invention.When utilizing the alkali-free plate glass material that in liquid crystal indicator, uses especially again, the thin-film transistor circuit that forms on its surface is formed with the works of the interval H that changes regularly between the plate glass, preferably as the plate glass that is used in plate glass laminate structure of the present invention.In addition, also can use again the fusion rejected material and be configured as the lamellar non-alkali glass of the size of regulation.

As mentioned above, plate glass laminate structure of the present invention is stacked across the middle layer each other less than the plate glass more than at least three of 1mm by thickness of slab and plate glass laminate structure that form, wherein, 50% length in the maximum physical dimension of transparent surface with described plate glass, and it is parallel with the direction of this maximum physical dimension and be on the imaginary line of mid point with the center of area of this transparent surface, setting comprises the central part of length 20mm of the mid point of this imaginary line, begin length when being respectively the both ends of 20mm with two ends from this imaginary line, for this central part and both ends, across described middle layer and the maximum variation delta Hmax of the interval H between the opposed described plate glass is 0 μ m＜Δ Hmax＜200 μ m, therefore, has shock-resistance, crime prevention, the structure of various superior performances such as heat shock resistance, be suitable as very much flexibility when utilizing small deformation can realize to the thing people's of collision low damage and in buildings etc. the window material of the various strength propertys of requirement.

And then, in the plate glass laminate structure of the present invention, if with respect to second plate glass with the gauge below 95% of the mean thickness size of the stacked plate glass more than three be disposed at least one side's of plate glass laminate structure outermost described plate glass via junction film, and the gauge of this junction film is more than the mean value of gauge in described middle layer, can improve shock-resistance, can be endowed higher stability, can use with wider purposes.

In addition, if the middle layer of plate glass laminate structure of the present invention is made of the sheet material with the suitable thickness that is formed by thermoplastic resin, then by selecting the thickness or the stacked number of plate glass in each middle layer arbitrarily, the material behavior of plate glass laminate structures such as Young's modulus, toughness, anti-connectivity, transmitance, thermotolerance easily can be adjusted to expected value, and can efficient make the plate glass laminate structure of stable grade well, so be fit to.

In addition, plate glass laminate structure of the present invention is as long as contain by more than one particles that constitute, fibrous material, reticulation, woven cloth in the group of glass, sintered glass ceramics, metal and carbon in the middle layer or weave cotton cloth, just can further improve rigidity and impact resistance, even under the situation of large-area works, also can realize the full intensity performance.

And then, the tabular glass laminated structure of multilayer of the present invention for described plate glass laminate structure each other across the multilayered structure of gap filling film with the gauge more than the 0.3mm, therefore, when the intensity aspect of a plate glass laminate structure is insufficient, also can form the specification that has improved intensity by further stacked a plurality of.

Description of drawings

Fig. 1 is the explanatory view of plate glass laminate structure of the present invention, (A) is three-dimensional overall diagram, (B) is part sectioned view, (C) is to want portion's amplification profile.

Fig. 2 is the explanatory view about the zone of confirming the change till the 200 μ m of the interval H between the plate glass of the present invention.

Fig. 3 is the chart of results of three of the plate glass duplexer of the present invention of the stacked six laminate shape glass of expression.

Fig. 4 is the chart of expression about the four-point bending test result of the plate glass duplexer of the present invention of stacked four laminate shape glass.

Fig. 5 represents about plate glass duplexer of the present invention, utilizes the chart of the young's modulus of three point bending test measurement.

Fig. 6 is the part sectioned view of another plate glass duplexer of the present invention.

Fig. 7 is the part sectioned view of the tabular glass laminated structure of multilayer of the present invention.

Among the figure: 10,11-plate glass laminate structure; The tabular glass laminated structure of 12-multilayer; 20,21-plate glass; The 20a-transparent surface; 30,31-middle layer; On the 40-transparent surface with this parallel linearity region of maximum physical dimension direction; The central part of 41-linearity region 40; 42, the both ends of 43-linearity region 40; 50-sheet glass (second plate glass); The 60-junction film; 70-gap packing layer; Interval between the H-plate glass; The maximum variable quantity of Δ Hmax-; The P-center of area

Embodiment

Below, according to embodiment, specify the particular case of the embodiment of plate glass laminate structure of the present invention.

Embodiment 1

In Fig. 1 and Fig. 2,, its explanatory view and stereographic map are shown about plate glass laminate structure 10 of the present invention.Fig. 1 (A) is three-dimensional overall diagram, and Fig. 1 (B) is a part sectioned view, Fig. 1 (C) be Fig. 1 (B) figure want portion's amplification profile.In the mark in these figure, 20 expressions constitute each plate glass of plate glass laminate structure, and 20a represents transparent surface, 30 middle layers of expression between plate glass.

This plate glass laminate structure 10 is, from Fig. 1 (A), Fig. 1 (B) as can be known, with the structure that the plate glass 20 of three 0.7mm gauges is laminated in the mode of justified margin, wherein, plate glass 20 separately has the area of the transparent surface of vertical 300mm, horizontal 500mm.The composition of these three plate glass 20 is all represented with the mass percent that is converted by oxide compound, is the SiO of 60 quality % ₂, 16 quality % Al ₂O ₃, 10 quality % B ₂O ₃, the MO (M=Ca, Mg, Ba, Sr, Zn) of 14 quality %, the Fe of 0.01 quality % ₂O ₃, and, will be used in the plate glass recycling that non-alkali glass is formed that has of liquid crystal indicator.

In addition, the middle layer 30 of three plate glass 20 be only mixed 0.5 quality % to have the length that E glass forms be layer glass fibre, that have the polyvinyl butyral that thickness is 0.2mm (PVB) of 0.1mm.Glass fibre is by using suitable shredding unit such as ball mill, existing glass fibre is configured as the filamentary material of fine sizes forms.

This plate glass laminate structure 10 is that the gauge of plate glass laminate structure 10 is in the 3mm as the trial-production of the window material purposes of buildings, can fix with frame as required in the end face portion of plate glass laminate structure 10.In addition, provide hot line reflectance coating (omitting diagram), from outdoor sunlight, can be suppressed at the distinctive dazzling feeling of feeling under the visual situation by reflection as the transparent surface 20a of the outmost surface of plate glass 20.

Fig. 2 be explanation in this plate glass laminate structure 10 across middle layer 30 and the explanatory view of the change of the size between the opposed plate glass 20.The maximum physical dimension of the transparent surface of plate glass laminate structure 10 is 500mm, it is being made as under 100 the situation, making central part at transparent surface be equivalent to 50 length is that the collinear mid point of 250mm is consistent with the center of area of this transparent surface, and be configured plate glass laminate structure 10 abreast with the long limit of transparent surface, central part 41 and both ends 42 for linearity region 40, the linearity region of 20mm between 43, as partly expression enlargedly among Fig. 1 (C), measuring the minimum value Hmin of the interval H between the plate glass and the difference of maximum value Hmax is Δ Hmax, the result, the maximum value Δ Hmax of the change of the interval H size between the plate glass 20 is determined at 24 μ m respectively, 63 μ m, 39 μ m, it is the scope of 24 μ m～63 μ m, all below 200 μ m, therefore, can utilize the cut-out observation, confirm the condition that satisfies plate glass laminate structure of the present invention.In addition, measurement same as described above is carried out at other a plurality of positions to the rectangular-shaped middle section of 40% area and the vertical 200mm of geometry center of gravity that comprise this transparent surface, horizontal 300mm of the transparent surface that occupies the essentially rectangular shape of plate glass laminate structure 10, Δ Hmax is also still in the scope of 24 μ m～63 μ m, about this zone, also can confirm the existence of the variation of above-mentioned interval H.In order to obtain the variation of H so at interval, utilize surface finishing, giving as maximum deflection to the aluminium plate with dimensional thickness 3mm identical with plate glass is the surface of 100 μ m, two aluminums that will carry out this surface finishing are as clamping plate, sandwich plate glass laminate structure of the present invention, the transfer surface bending.In addition, in addition, the whole bag of tricks is arranged also, for example, the distribution by suitably regulating in middle layer 30 filler material that adds or the amount of filler material etc., or middle layer 30 uses and have fine concavo-convex sheet material in advance also can be given between the plate glass variation every H.

Secondly, in the following order, the manufacture method of plate glass laminate structure of the present invention is described.

Become the mass percent of preparing to have in specified dimension ground at first, in advance and be expressed as 50%～85% SiO with the oxide compound conversion ₂, 2%～30% Al ₂O ₃, the following R of 0.1 quality % ₂The sheet material of the non-alkali glass of the composition of O (R=Na+K+Li).At this, as liquid crystal indicator, use the product of utilization again of the plate glass of disposable assembling, clean fully so that the surface of described plate glass is in the state that does not have dirt or dirt settling etc. by matting.In order to make the effect that the interval between the plate glass is changed regularly in the lip-deep membrane structure thing performance of these plate glass every H, do not remove the various transparent film circuit or the optical thin film layer that on plate glass, constitute.In addition, when if manufacturing glass is used for this plate glass laminate structure, under situation by glass melting furnace shaping plate glass, can prepare the raw material of regulation, and, utilize overflow downdraw manufacturing process such as (over flow down draw) to form and have the plate glass of the high size of precision as sheet glass with its fusion, homogenizing.

Secondly, comprising ethanol 12: toluene 8: fuse polyvinyl butyral (PVB) toner 20g among the mixing organic solvent 100ml of butanols 1, the glass fibre of the 0.1mm length with E glass composition weighing 0.5 quality % a great deal of, that prepare with the ball mill pulverizing, it is mixed with described organic solvent, use homogenizer to mix equably, prepare PVB solution thus.The bubble that is involved in when the mixing operation that outgases is not contained the even PVB solution of bubble.

The PVB solution of drippage specified amount on the face with transparent film transistor circuit of the plate glass that flatly keeps, after utilizing coating machine that its thickness ground with homogeneous is applied repeatedly, dry organic solvent, formation has the PVB resin molding of 200 microns mean thickness.Utilize this method system film, the PVB thickness of resin film can be in the scope of hundreds of μ m～tens μ m, and can more freely regulate thick resin film.In addition, by doing one's utmost to eliminate organic solvent residual on the PVB resin molding, can improve the bad orders such as foaming in the operation of back.

At stacked two plate glass and the plate glass that do not have the PVB resin molding of its single face with PVB resin molding, on the aluminium sheet material of the thickness 3mm with the shape identical and identical size with plate glass, utilize surface finishing to give the surface that maximum deflection has 100 μ m, sandwich 3 of plate glass in mode as clamping plate with the condition of surface transfer printing of two kinds of aluminums after this surface finishing, with the plate glass of stacked state with alclad is airtight is contained in the decompression bag, to carry out vacuum outgas at the air of the voids left between plate glass and the PVB resin, when being heated to about 100 ℃, with 10kgf/cm ²Pressure, carried out hot pressing about 20 minutes, welding PVB resin and plate glass obtain plate glass laminate structure of the present invention.

Secondly, the evaluation to the mechanical property of plate glass laminate structure of the present invention describes.

Embodiment 2

Load-carrying deformational behavior for the three point bending test that utilizes the plate glass laminate structure, in order to estimate the performance of plate glass laminate structure of the present invention, prepare to have the transparent surface area of vertical 50mm, horizontal 180mm, the outer goods of the tabular glass bending specification of liquid crystal of thickness 0.7mm.About this plate glass, owing to form the state of stacked 4 layers, 5 layers and 6 layers, therefore get all the polyvinyl butyral (PVB) resin sheet of ethyl polyvinylacetate (EVA) resin sheet, gauge 0.38mm and the 0.76mm of gauge 0.25mm ready with plate glass with having the size identical, between stacked plate glass, sandwich resin sheet then, form the laminate structure of plate glass and resin sheet.Also have, utilize alclad enforcement the bearing surface handled of the curved surface of maximum 50 μ m sandwich the laminate structure of this plate glass and resin sheet, form the decompression stationary state in decompression in the resin bag, secondly, when heating, at 10kgf/cm ²Pressurized conditions under carry out heating pressure dressing and obtain test film in 20 minutes.

Test film for aforesaid way obtains under the normal temperature and pressure environment, uses the strength test device of Shimadzu Seisakusho Ltd., utilizes the three point bending test of 120mm span, under 0.5mm/ minute condition of cross head speed, implements the evaluation of the anti-load-carrying of test film.

Consequent typical example, the load-carrying deformational behavior that utilization shown in Figure 3 produces at the three point bending test of the plate glass laminate structure of the present invention (thickness 5.16mm) that the EVA resin molding of six plate glass used thickness 0.25mm is constituted illustrates its characteristic.In this Fig. 3, the test film amount of being pressed into that transverse axis represents to utilize cross head to produce is the displacement (mm) of test film, and the longitudinal axis is represented the weight-carrying capacity (kgf) that applied by cross head.The test film loading display of being estimated is the displacement of 62kgf and 3.5mm, but under this weight-carrying capacity, the plate glass that is positioned at the plate glass structure at the back side on the plate glass structure surface of the cross head butt of testing apparatus breaks, and weight-carrying capacity reduces to a certain degree.Yet plate glass laminate structure of the present invention is laminated with the multilayer plate glass, and load-carrying can not revert to zero immediately, and remaining 5 plate glass show the intensity of keeping as the plate glass structure.Its result, the minimizing of weight-carrying capacity rests on 49kgf.And then if insert cross head, its displacement increases to 4.9mm, and load-carrying returns to 61kgf once more, and second plate glass ruptures.Insert cross head by further continuation, load-carrying further increases, and takes place repeatedly with the fracture of its successive plate glass.Finally, when displacement is 7.7mm, last plate glass breaks, the test film forfeiture is as the intensity of structured material, and till the intensity of test film forfeiture as structured material, though constitute test film plate glass part generation crackle and break, tabular glass laminated structure can be kept the intensity as structured material.Though laminated glass in the past shows high rigidity in the load-carrying deformational behavior, be minimum distortion, after plate glass breaks, show lost strength immediately and damaged shattered to pieces property ultimate properties takes place.On the other hand, plate glass laminate structure of the present invention has following special performance: in three point bending test, before initial plate glass breaks, show linear knee springing, after breaking, keep the strength of materials as load material.From this result as can be known, plate glass laminate structure of the present invention has the superior load-carrying placement property of ability that absorbs the external force energy, has that unavailable high toughness is high shock absorption ability in the past plate glass or laminated glass.In addition, from take place before the breaking of initial plate glass linear relation as can be known, the young's modulus of this plate glass laminate structure has the value up to 10.9GPa.In addition, interval H for the plate glass of the plate glass laminate structure that is used in this test, utilize xenon lamp light transmission strength detection method, evaluation comprises its mid point and the length 90mm linearity region parallel with long side direction in the center of area of sample, and the maximum change Hmax of size that the result can confirm the size of space H of every length 20mm is 17 μ m～36 μ m.But, for xenon light intensity value being scaled the interval H between the plate glass, make in advance with expression penetrating light intensity and plate glass between the basis of the corresponding detection line of variation of interval H on, estimate the plate glass interval H in the test portion.

Secondly, the mechanical property evaluation that utilizes four-point bending test to plate glass laminate structure of the present invention describes.The load-carrying deformational behavior of the four-point bending test of the plate glass laminate structure of the present invention (thickness 5.08mm) that utilization shown in Figure 4 constitutes the PVB resin molding of four plate glass used thickness 0.76mm, and its behavior is described.In this Fig. 4, transverse axis represents that utilizing the test film amount of being pressed into of cross head is the displacement (mm) of test film, and the longitudinal axis is represented the weight-carrying capacity (kgf) that utilizes cross head to apply.The feature of the action of this Fig. 4 is, the non-linear-elastic characteristic that shows below, that is and, the necessary load-carrying till cross head is inserted 2mm is up to the so little value of 2kgf, but with respect to this being pressed into more than the displacement, load-carrying increases suddenly.That is, have following special non-linear-elastic characteristic, that is, have, show the lower young's modulus of 0.7GPa, but, show these two kinds of recoverable deformation behaviors of the young's modulus more than 10 times of 8.9GPa with respect to the displacement more than the certain value with respect to the initial stage displacement.That is,, till certain deformation range, flexibly deform, and absorb energy, but under the big situation of displacement change, can stop bigger power owing to second elastic properties in that plate glass duplexer of the present invention has been applied under the situation of power.By utilizing this feature; for example; in the collision of plate glass duplexer of the present invention and human body; plate glass duplexer of the present invention flexibly deforms in the early stage; thus, after the low impact of utilization stops human body, utilize the demonstration of the second quality; snappiness bulk absorption more energy is protected human body, thereby can expect the application as aforesaid new plate glass material.Think that the softish knee springing at this distortion initial stage derives from the feature that has between partial deflection or the concavo-convex plate glass that causes every the variation of H.The variation of the non-linear-elastic characteristic that high tenacity shown in the above-mentioned three-point bending characteristic and four-point bending characteristic are shown can be confirmed by stacked number or intermediate layer thickness, but find that these are the performances that commonly exist in plate glass duplexer of the present invention.Interval H with regard to the plate glass of the plate glass laminate structure of use in this test, linearity region about the center of area that the center is included in its test portion, the length 90mm parallel with long side direction, utilize laser multilayer film determination sensor to estimate, the result is that the maximum variation delta Hmax of the size of the interval H of every length 20mm is the scope of 23 μ m～45 μ m.

Summary utilize three point bending test and obtain in stacked number and intermediate layer thickness, the variation of young's modulus when kind changes, be illustrated among Fig. 5.At this, transverse axis is represented the stacked number of plate glass, and the longitudinal axis is represented the young's modulus that obtained by three point bending test.Each kind by the middle layer increases under the situation of the stacked number of plate glass, and the volumetric ratio of glass/middle layer resin reduces, therefore, and as the young's modulus reduction of plate glass duplexer.On the other hand, about the stacked number of identical plate glass, the volumetric ratio of glass/middle layer resin increases along with the attenuation of intermediate coat thickness, therefore, and as the young's modulus increase of plate glass duplexer.From above result as can be known, by regulating the volumetric ratio of the glass/middle layer resin that constitutes plate glass duplexer of the present invention, can access young's modulus arbitrarily.Interval H with regard to the plate glass of the plate glass laminate structure of use in this test, for the center of area that the center is included in its test portion, the length 90mm linearity region parallel with long side direction, utilize laser multilayer film determination sensor to estimate, the maximum variation delta Hmax of the interval H of every length 20mm is the scope of 18 μ m～31 μ m.

From this result as can be known, plate glass laminate structure of the present invention passes through the suitably structure of design level laminate materials, can give the high rigidity that can stand as the use of structured material, can also give extremely softish elastic property.

In addition, find in this test that when stress application, plate glass laminate structure of the present invention is worked according to the mode of the slip distortion that can suppress plate glass, therefore, can relax the stress that applies owing to stacked.Therefore, stacked plate glass more than three layers can be owing to not applying of stress disposable being broken, but destroyed gradually.Except the structure with the deflection between stacked of such plate glass, because such performance, plate glass laminate structure of the present invention forms the superior structure of shock-resistance.

In addition, about plate glass laminate structure of the present invention,,, can have higher young's modulus suitably changing under the situation of creating conditions of plate glass duplexer from above-mentioned as can be known clear and definite.Also as can be known, if select to form the condition of high young's modulus as far as possible, then its value can become further high high value 31GPa.

In addition, confirm:,, set young's modulus E (kgf/mm as if plate glass to 0.7mm thickness for plate glass laminate structure of the present invention ²), thickness of slab θ (mm), coefficient of thermal expansion α (1/K), calculate heat shock resistance index R=(E α θ ²) ^-1, the result, this value can realize high thermotolerance for more than the 20K/kgf.

In order further to estimate the chemical durability of plate glass laminate structure of the present invention, to have 10 samples that are cut to the square square shape of 80mm with the plate glass laminate structure of the present invention of embodiment 1 same structure of making in advance, these 10 samples are carried out the boiling test relevant with water tolerance in 12 hours in boiled water, by utilize 20 times stereomicroscope and visual observation to confirm the state of the plate glass stepped construction surface after the described test, estimate whether have unusual.Its result does not confirm the reduction of the transmitance that the rotten grade of structure causes on the surface of the structure of plate glass duplexer of the present invention, can judge to have the practical no problem water tolerance that.

As mentioned above as can be known, plate glass duplexer of the present invention not only has high shock-resistance, and thermotolerance or water tolerance are also had superior performance, is suitable as the window material of various buildingss.

Embodiment 3

Secondly, another plate glass laminate structure of the present invention below is shown.

Fig. 6 represents the part sectioned view of another plate glass laminate structure 11 of the present invention.This plate glass laminate structure 11 is plate glass 21 of having implemented the pyrex of intensive treatment, and it has the transparent surface that is of a size of 300mm * 400mm, and thickness of slab is of a size of 0.6mm, is in the state that surpasses 20 μ m in the interval surface undulation of 20mm length.Also have, as the middle layer between each plate glass 31, by across by dispersing and mixing the gauge that constitutes of the polyvinyl butyral resin sheet of light transmitant aluminium oxide filler be that the middle layer 31 of 0.38mm is stacked.

Also have, further structural being characterised in that of this plate glass laminate structure 11, in side's side of plate glass laminate structure 11, transparent sintered glass ceramics sheeting glass (second plate glass) 50 engaged by the junction film 60 of polyvinyl butyral.Thickness of slab as the sintered glass ceramics 50 of sheet glass is of a size of 0.48mm, becomes 80% thickness of slab size of plate glass 21.In addition, junction film 60 has the gauge of 0.76mm.

In this structure 11, for across middle layer 31 and the change of the size between the opposed plate glass 21, by the center of area with the transparent surface of the plate glass of plate glass laminate structure 11 is mid point, for comprising the 20mm of central part of linearity region that this mid point and the length parallel with long limit are 200mm and the 20mm at both ends, the mensuration of laser multilayer film determination sensor has been used in utilization, the result, the maximum variation delta Hmax of interval H between the plate glass is 110 μ m, 76 μ m, 140 μ m, scope at 76 μ m～140 μ m, in the scope of 0＜H＜200 μ m, formed and had high inflexible structure.

Embodiment 4

Fig. 7 represents the part sectioned view of the tabular glass laminated structure 12 of another multilayer of the present invention.The tabular glass laminated structure 12 of this multilayer has following structure, and described structure has: engaged the repeating structure that is formed by two plate glass laminate structures 11 that constitute with plate glass identical shown in the embodiment 2 21 and its middle layer 31 with gap packing layer 70.Because this gap packing layer is to form by sandwiching the polycarbonate resin adipose membrane that has adhesive linkage, so its gauge is 0.64mm.

In this structure 12, for across middle layer 31 and the change of the size between the opposed plate glass 21, in the center of area with the transparent surface of the plate glass of plate glass laminate structure 11 is mid point, comprise in the central part and both ends of linearity region of this mid point and the length 200mm parallel with long limit, the maximum variation delta Hmax of interval H between the plate glass is 110 μ m, 76 μ m, 140 μ m, scope at 76 μ m～140 μ m, because in the scope of 0＜H＜200 μ m, therefore formed and had high inflexible structure.

And then, about constituting the plate glass thickness of plate glass laminate structure of the present invention, illustrate and use plate glass with thinner thickness, estimated the example of structural strength.

Embodiment 5

Preparation will have the plate glass laminate structure that the stacked four laminate shape glass of EVA resin molding of the plate glass used thickness 0.25mm of thickness of slab 0.1mm form and the plate glass laminate structure of stacked six laminate shape glass.The plate glass laminate structure that will have these stepped constructions is supplied in three point bending test with disome respectively, by these load-carrying deformational behavior, obtains the young's modulus of the plate glass laminate structure of each structure.Its result, the young's modulus that can confirm the plate glass laminate structure that stacked four laminate shape glass form is 17GPa, the young's modulus of the plate glass laminate structure that the glass laminated structure of stacked six laminate shapes forms is 7GPa.These young's moduluses are minimum value as the plate glass material, can judge to have formed superior and the softish material.Also have, the maximum variation delta Hmax of the interval H of the plate glass of this laminate structure can confirm by the hyalosome boundary position assay method of utilizing laser microscope, the result is 62～108 μ m, and hence one can see that, and it is a plate glass laminate structure of the present invention.

As mentioned above, plate glass laminate structure of the present invention and be the structure that has high function, has superior shock-resistance with the tabular glass laminated structure of multilayer that its further multiple stratification forms is the structured material of grade with purposes of various wide scopes such as can being applicable to buildings or electronic unit.

Claims

1. a plate glass laminate structure is characterized in that, it is stacked and form across the middle layer each other less than the plate glass more than at least three of 1mm by thickness of slab, wherein,

When 50% length of the maximum physical dimension of transparent surface and parallel with the direction of this maximum physical dimension and be on the imaginary line of mid point with the center of area of this transparent surface with described plate glass, setting comprise this imaginary line mid point length 20mm central part and begin length from the two ends of this imaginary line when being respectively the both ends of 20mm, for this central part and both ends, across described middle layer and the maximum variation delta Hmax of the interval H between the opposed described plate glass is 0 μ m＜Δ Hmax＜200 μ m.

2. plate glass laminate structure according to claim 1 is characterized in that,

Second plate glass is disposed at least one outermost described plate glass via junction film, and the gauge of this junction film is more than the mean value of the gauge in described middle layer, wherein, described second plate glass is compared with the mean thickness size of described stacked three above plate glass, has the gauge below 95%.

3. according to each described plate glass laminate structure in claim 1 or 2, it is characterized in that,

Described middle layer is to be made of the sheet material of having used thermoplastic resin.

4. according to each described plate glass laminate structure in the claim 1～3, it is characterized in that,

Contain by more than one particles that constitute, fibrous material, reticulation, woven cloth in the group of glass, sintered glass ceramics, metal and carbon in described middle layer or weave cotton cloth.

5. the tabular glass laminated structure of multilayer is characterized in that,

In claim 1～4 each described plate glass laminate structure each other across gap filling film with the gauge more than the 0.3mm, formed multilayered structure.